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Finding the Fourth Proportional to 14,630.76, 20,188.58 and 8,341.48

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Solution

The fourth proportional to 14,630.76, 20,188.58 and 8,341.48 is: 11,510.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,630.76 : 20,188.58 = 8,341.48 : x
  2. Step 2: Convert to fraction form
    14,630.76/20,188.58 = 8,341.48/x
  3. Step 3: Cross multiply
    14,630.76x = 20,188.58 × 8,341.48
  4. Step 4: Simplify right side
    14,630.76x = 168,402,636.30
  5. Step 5: Solve for x
    x = 168,402,636.30/14,630.76
  6. Step 6: Final answer
    x = 11,510.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.